2887891401539 has 4 divisors (see below), whose sum is σ = 2895315287280. Its totient is φ = 2880467515800.

The previous prime is 2887891401523. The next prime is 2887891401547. The reversal of 2887891401539 is 9351041987882.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2887891401539 - 2⁴ = 2887891401523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2887891400539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3711942287 + ... + 3711943064.

It is an arithmetic number, because the mean of its divisors is an integer number (723828821820).

Almost surely, 2^{2887891401539} is an apocalyptic number.

2887891401539 is a deficient number, since it is larger than the sum of its proper divisors (7423885741).

2887891401539 is an equidigital number, since it uses as much as digits as its factorization.

2887891401539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7423885740.

The product of its (nonzero) digits is 34836480, while the sum is 65.

The spelling of 2887891401539 in words is "two trillion, eight hundred eighty-seven billion, eight hundred ninety-one million, four hundred one thousand, five hundred thirty-nine".